585 papers
The subatomic world is a realm where matter behaves in ways that defy our everyday intuition, and this category explores the fundamental building blocks of our universe. From the intricate dance of quarks inside a proton to the strange properties of electrons, these studies reveal the deep rules that govern everything from the smallest particles to the largest stars.
At Gist.Science, we track every new preprint in this field as it appears on arXiv, ensuring you stay ahead of the curve. For each discovery, we provide both a clear, plain-language explanation of the core ideas and a detailed technical summary for those who want to dive deeper into the mathematics and methodology.
Below are the latest papers in Atom-Ph, offering fresh insights into the structure and behavior of the atomic scale.
This presentation reviews potential Lorentz violation signals in atomic and molecular spectroscopy by summarizing current constraints on nonrelativistic SME coefficients, outlining prospects for first-time bounds on unconstrained parameters, and emphasizing the critical role of high-angular-momentum states in these symmetry tests.
This paper extends a classical canonical framework for analyzing composite pulse robustness to two-dimensional distributions of initial states on the Bloch sphere, demonstrating that while Levitt's sequence remains largely robust against initial state imperfections, numerical optimization can identify variants that achieve superior coherent population inversion.
This paper presents a compact, single-optical-axis vector magnetometer that achieves deadzone-free operation with high angular accuracy (80 rad) and low noise by utilizing Zeeman Rabi oscillations driven by resonant radiofrequency polarization ellipses, supported by a comprehensive theoretical model and calibration protocol.
This paper proposes a novel H and HD formation pathway driven by Jahn-Teller dynamical coupling in H that bypasses standard CMB-suppressed intermediates, potentially explaining the unexpectedly early and abundant formation of luminous galaxies and supermassive black holes observed by the James Webb Space Telescope.
This paper experimentally investigates light transmission through dense atomic vapor, demonstrating that the propagation can be modeled as a Lévy flight with a length-dependent local power exponent and a step-length distribution that alternates based on atomic collisions, where the measured Lévy index is determined by the system size.
This paper demonstrates a miniaturizable three-photon Rydberg electrometry scheme for Cesium atoms using a J-level coupling and external cavity diode lasers, achieving competitive electric field sensitivity of 27 μV m⁻¹ Hz⁻¹/² at 4.7 GHz without requiring tapered amplifiers or frequency doubling crystals, while also exploring a modified population repump readout configuration.
This study demonstrates that a mesoscopic Fermi gas in a high-finesse cavity exhibits a non-monotonic superradiant threshold driven by a crossover between Fermi pressure-assisted ordering and Pauli blocking, while also enabling the observation of spin-density-wave phases through spin-dependent light-induced forces.
This paper introduces \texttt{featom}, an open-source, high-order finite element Fortran code that achieves high-accuracy solutions for radial Schrödinger, Dirac, and Kohn-Sham equations in heavy atoms through systematic convergence control and specialized techniques for handling singularities, while demonstrating significant speed improvements over existing methods.
This paper presents a magnetic trapping scheme for cold 87Rb atoms using light-induced fictitious magnetic fields generated by an optical nanofiber integrated with optical tweezers, demonstrating tunable trap positions and depths essential for studying surface effects and optimizing atom-photon interfaces.
This paper proposes that quantum sensors can detect bursts of ultralight bosonic fields emitted during violent astrophysical events, thereby establishing a new multimessenger astronomy channel that remains viable even when accounting for matter screening effects.